5 tactics Man United could use to get Marouane Fellaini AND Wayne Rooney firing

3)

Or perhaps Van Gaal will pair the two together in a diamond formation, meaning that Fellaini can isolate one centre-half for his aerial battle rather than tussle with two as a lone forward.

He would have to improve on his goal ratio – 1 in 7 so far in his Old Trafford days – to play as an out-and-out striker, although Ander Herrera could be brought into midfield to help chip in.